VideoMemBench - 128 Frames - Answer Chain Accuracy: leaderboard

Video-grounded multi-turn dialogue memory under sequential self-rollout, with model answers retained in history. Turn accuracy, episodic dependency accuracy and answer-chain accuracy are separate, overlapping views; the overall score is their equal mean. 326 dialogues; sequential self-rollout with full previous model answers; uniform timestamped video frames; no audio/subtitles; complete conversation history; exact deployment checkpoints and thinking modes unreported; native MC extraction and GPT-5.4 mini open-answer grading; percentages; 128 frames. Metric: Accuracy (%).

Metric: Accuracy (%). Source: arxiv.org. Saturation forecast: Rough model projection: around 2026. 25 models tracked.

Top models

#ModelScoreOverall rank
1Claude Opus 5 (Benchmark Sweep Run: source=VideoMemBench; frames=128; self-rollout; exact-checkpoint-and-thinking-mode=unreported)35.7
2Gemini 3.8 Flash (Benchmark Sweep Run: source=VideoMemBench; frames=128; self-rollout; exact-checkpoint-and-thinking-mode=unreported)30.3
3Gemini 3.5 Flash (Benchmark Sweep Run: source=VideoMemBench; frames=128; self-rollout; exact-checkpoint-and-thinking-mode=unreported)29.7
4Claude Sonnet 5 (Benchmark Sweep Run: source=VideoMemBench; frames=128; self-rollout; exact-checkpoint-and-thinking-mode=unreported)27.3
5GPT-5.6 Sol (Benchmark Sweep Run: source=VideoMemBench; frames=128; self-rollout; exact-checkpoint-and-thinking-mode=unreported)27.1
6Kimi K3 (Benchmark Sweep Run: source=VideoMemBench; frames=128; self-rollout; exact-checkpoint-and-thinking-mode=unreported)27.1
7GPT-5.5 (Benchmark Sweep Run: source=VideoMemBench; frames=128; self-rollout; exact-checkpoint-and-thinking-mode=unreported)27
8Gemini 3.1 Pro (Preview) (Benchmark Sweep Run: source=VideoMemBench; frames=128; self-rollout; exact-checkpoint-and-thinking-mode=unreported)27
9GPT-5.4 (Benchmark Sweep Run: source=VideoMemBench; frames=128; self-rollout; exact-checkpoint-and-thinking-mode=unreported)21.9
10Qwen 3.5 27B (Benchmark Sweep Run: source=VideoMemBench; frames=128; self-rollout; exact-checkpoint-and-thinking-mode=unreported)20.9

Interactive version: theaggregate.ai/benchmark?slug=videomembench-128-frames-answer-chain-accuracy · How It Works · Data refreshed daily, snapshot 2026-11-06.